AngularJS - ng-if example
HTML
<div ng-app="miniapp" ng-controller="Ctrl">
<div ng-if="beenAdded(id) == false">
It was false.
</div>
<div ng-if="beenAdded(id) == true">
It was true.
</div>
<div ng-if="beenAdded(id) == 0">
It was false.
</div>
<div ng-if="beenAdded(id) == 1">
It was true.
</div>
</div>
JavaScript
var $scope;
var app = angular.module('miniapp', []);
function Ctrl($scope) {
$scope.beenAdded = function(){
return false;
};
};